Door weather strip



J. I. HAMM DOOR WEATHER STRIP Jan. '30, 1940.

Original Filed Nov. 26, 1935 INZENTQR ATTORNEYS P Rested J... '36, Re. 21,337

UNITED :STATES PATENT [OFFICE noon WEATHER s'rnrr James I. Hamm, Fairfleld, Conn., assignor, by

mesne assignments, to Bridgeport Fabrics, Inc..- Bridgeport, Conn, a corporation of Connecticut Original No. 2,043,700, dated June 9, 1936, Serial No. 51,611, November 26, 1935. Application for reissue August 25, 1939, SerialNo. 291,951

14 Claims.

This invention relates to new and useful improvements in a finishing molding or Weatherstrip particularly adapted for automobile doors, although not necessarily limited to such use. It is common practice at the present time to use a Weatherstrip about automobile doors at the inner side thereof comprising a rubber or fibrous,

core venclosed in a woven fabric covering which is sewed along one side of the tube to leave.

will do this indefinitely and after continued use so that the desired seal about the door will be maintained indefinitely and under continued use.

Other objects and advantages will become apparent from the following detailed description taken in connection with the accompanying drawing. However, it will be understood that the invention is not confined to the details disclosed but includessuch variations and modifications as 'fall within the spirit of the invention.

In the drawing:

Fig. 1 is a detail section indicating my improved weatherstrip as applied to an automobile door;

Fig. 2 is a transverse section of the weatherstrip on an enlarged scale;

Fig. 3 is a partial side elevation and a partial section of the strip; 7 1

Fig. 4 is a side elevation of a portion of the stiffening member; and

Fig. 5 is a section similar to Fig. 2 showing a slightly modified construction. f

In Fig. 1 I have shown merely diagrammatically at l0 one edge portion of an automobile door and the door post or frame at Ii. My improved Weatherstrip indicated as a whole by I2 issecured to the frame ll about the door opening with the enlarged bead portion ll overhanging the edge of the door opening so as to engage the inner surface of the door to cover and seal the joint or crack between the edge of the door and the door opening.

This improved weather or'sealing strip is composed of a resilient stiffening strip ll on one edge of which is ,a yieldable resilient core II, and

it which encloses the core and extends onopposite sides of the stiffening strip 14 as indicated at H and i8. This core is preferably of sponge rubber as this material is soft and resilient and maintains its shape indefinitely, although other suitable materials may be used. This fabric covering may be of any plain or fancy weave as desired to correspond with the interior finish or upholstery of the car, and it may be secured to thestrip l4 and the core l5 either by a layer of cement about the core and on opposite sides of the strip II, or it may be secured to these elements by stitching as indicated at l9, or if pre-. ferred boththe stitching and the cement may be used. Q

The strip I4 is not only a stiffening strip but it has a resilient spring action, so that although it may permit the enlarged portion iii of the strip to yield inwardly from pressure of the door it still tends to move outwardly against the door so that when the pressure is released it moves back to its original position. It therefore also presses with resilient action against the surface of the door to always maintain the seal and provide what is in effect a pressure seal to effectively prevent entrance of cold air around the door.

This strip i4 is a woven wire fabric and is woven with warps 2|) of suitable fibrous threads such as cottonor linen and with a filling or weft 2i. of a special temper spring wire. This ispreferably of rather fine wire but with suflicient temper and stiffness that it maintains its original position,

and after being bent or forced to one side will rein the same pick, so that I get double the amount of wires tothe inch of fabric over a fabric where there is only onewire to apick. In other words the wire forms the filling in the fabric with the wire passing through the warptwice on each shed of the warp, laying two wires together to increase the efficiency of the springiness of the .wire. This gives a stronger stiffening strip and one which has greater holdingeifect for a given size of wire so that a finer wire can be used. Along one edge is a head 22 preferably of any suitable fiber, which is secured to the wire weft strands by a separate thread 23 passing through the looped endsof .the wire, or if preferred the wire strands may be looped over this bead. This assists in securing to the stiffening strip the yieldable corev i5.

This yieidable core ll is preferably of rubber. so that it is soft and yielding and still ls maintains its life and resiliency and therefore its original shape indefinitely. It may be formed by taking a rod of sponge rubber of any desired shape, preferably either round or oval, and siltting it longitudinally along one side and inserting the edge of the strip ll into this cut as shown in Fig; 2, with the bead 22 preferably at about the center of the sponge rubber core, and then pressing the sides of the core against the sides of the stiffening strip. The fresh cut surfaces of the sponge rubber comes together and engage through the openings 24 between the'wires of the weft so that they adhere to each other and make a substantially solid core about the edge of the strip, or if preferred, the sponge rubber material may be molded in position about the edge of the strip and vulcanized while in this position, making a. still more unitary construction. Then the covering it of woven fabric may be applied to enclose the core and the exposed instead of using the solid sponge rubber core is I may use a rubber tube 28. This can be applied by slitting it longitudinally along.one sideand then inserting. the'edge of the strip I i as indicated, and enclosing the strip l4 and the tube in the woven fabric covering 18 the same as in the first form. It will be understood that although I have shown the core as substantially circular in cross section it may be of other desired shapes, such for example as oval or any other suitable shape. i

It will be apparent from the above that this Weatherstrip construction combines the best features of the rubber tubing or sponge rubber core covered with a woven cloth fabric with the lm-' proved effect of a woven resilient wire fabric which is so combined withthls core as to form in effect a spring hinge, and which always holds 1 the Weatherstrip positively against the door to maintain the proper seal, and this will maintain this action and eflect indefinitely under continued use. I

l. A weather strip of the character describe comprising a woven attaching strip including a yieldable resilient wire extending transverseiy of said strip, a soft resilient core secured alon one edge of said strip, and a woven finishin fabric enclosing said core and secured to said strip. v V 2. A weather strip of the character described 'comprising a woven attaching strip including a yieldable resilient wire woven transversely therein to stiffen the strip, an enlarged core member extending along one edge of the strip, and a finishing woven fabric enclosing the core and suiflcient resiliency to return the stiffening strip Having thus set forth the nature of my in "vention. what I claim is:

a finishing woven fabric enclosing the core and ber extending along and embracing one edge of the strip, and a fabric finishing covering enclosing the core and strip.

5. A weather strip of the character described comprising a woven stiffening strip of fibre warp and tempered spring wire weft, a resilient rubber core secured to one edge of the stiffening strip.

and a fabric finishing covering enclosing the core and strip.

6. A weather strip of the character described comprising a woven stiffening strip including cross members of tempered spring wire, and an enlarged head of yieldable resilient material extending along one edge of said strip, saidcross members extending into the bead.

7. A weather strip of the character described comprising astiffening strip of fibre warp threads and spring wire weft woven therewith, said wire weft extending beyond the warp at one side to form open loops, a sponge rubber core along one edge of the strip. embracing and filling said loops, and a fabric finishing covering embracing the core and strip.

8. A stiffening strip for a Weatherstrip comprising a woven fabric having fibre warps and tempered spring wire weft members, and the wire weft members extending through the warp twice on each shed of, the warp. V 9. A weather strip of the characterdescribed comprising a. woven stifl'ening strip including fibre warps and weft members of resilient spring wire, and an enlarged bead of sponge rubber ex tending along one edge with the resilient weft members extending into the bead},

10. A, stiflening strip for a weather strip comprising a woven fabric having fibre warps and line tempered spring wire weft members, and the wire weft members extending through the warp twice on each shed of the warp and having strip, said portion of the loop passing through 55 the strip being compressed and constricted by the warp to a width less than the width at the outer end thereof.

13. A weather strip of the character described comprising a woven stiffening strip including cross members of tempered spring wire arranged in pairs in the woven strip and connected at one end thereof to form an open loop with the end of the loop projecting from the edge of the strip,the portion of the loop passing through the strip being compressed by the strip as it passes therethrough, and an enlarged head of yieldable resilient material extending along one edge of the strip and having the looped cross members extending therein.

13. A weather strip of the character described comprising a woven stiffening strip including a fibre warp and weft members of rmilient spring wire, an enlarged bead of sponge rubber extendingalong one edge of the stiffening strip with the resilient wei't members extending into-the bead, said resilient-weft members normally having sumcient temper and stiil'ness to maintain the head in an original position and return the bead to said original position as soon as pressure is removed after-being bent or forced to one side.

14. A weather strip of the character described comprising a woven stiflening strip including a fibre warp and weft members 01' resilient spring wire, the wire 01' the weft members extending through the warp twice on each shed oi the the bead to its normal position when pressure 18 lo relieved therefrom.

JAMIBLHAIDI. 

